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Calcium hydride is the chemical compound with the formula CaH 2, an alkaline earth hydride. This grey powder (white if pure, which is rare) reacts vigorously with water, liberating hydrogen gas. CaH 2 is thus used as a drying agent, i.e. a desiccant .
Using the Principle of Charge Neutrality (section 2.6.6) and knowing the charge of the ions allows you to determine the formula. Exercise \(\PageIndex{1}\) What is the formula for Barium Chloride?
We will need two potassium ions to balance the charge on the sulfate ion, so the proper chemical formula is \(\ce{K_2SO_4}\). Calcium ions have a charge of 2+, while nitrate ions have a charge of 1−.
You must consider the charge of the ions when writing the formula for an ionic compound from its name, however. Because the charge on the chloride ion is −1 and the charge on the calcium ion is +2, for example, consistent with their positions in the periodic table, simple arithmetic tells you that calcium chloride must contain twice as many ...
14 Οκτ 2021 · Calcium;hydride | CaH2 | CID 105052 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Roman numeral notation indicates charge of ion when element commonly forms more than one ion. For example, iron( II ) has a 2+ charge; iron( III ) a 3+ charge.
In chemistry, cyanide (from Greek kyanos ' dark blue ') is a chemical compound that contains a C≡N functional group. This group, known as the cyano group, consists of a carbon atom triple-bonded to a nitrogen atom. [1] In inorganic cyanides, the cyanide group is present as the cyanide anion −C≡N.
